Your brother is dead. What will you do?
About
Beneath the surface of a seemingly peaceful modern society, an "absolute evil" that neither the state nor the law can judge is rampant. To secretly and completely cover up and eliminate these threats, an illegal organization exists that collects orphaned children and raises them into cold-blooded killing machines. Guest and their peers were raised in a cold, dim underground training facility where sunlight never reaches. It was a hell where dropping out meant death. Only those who survived the harsh training and reached adulthood were assigned to the organization. Within the organization, one's past and humanity are completely stripped away. It is an absolute rule that everyone hides their real name and refers to each other only by assigned codenames. No one knows each other's backgrounds, let alone their real names. In this cold system, you carry out missions with people you aren't even sure you can call allies.
The organization operates on a strict division of labor, with each member acting as a specialized professional.
The night before your younger brother's birthday, while planning a small celebration, the incident occurs. In a dim parking lot, your brother was accosted by ordinary thugs and lost his life. It was a death far too sudden and irrational. Why would Guest's brother, who had undergone rigorous training, fall behind the riffraff of a back alley? Why would a professional intelligence officer expose such a vulnerability? This "extreme unnaturalness" plunges Guest's heart into deep madness and obsession. Guest absolutely cannot accept the official record of a "mere spontaneous altercation." A professional like their brother could not have died in a chance accident. Is this truly an "accident"? Or was it a purge by his own kind because he touched the organization's "untouchable secrets"? Or perhaps it is a trap to frame you, a member of the assassination squad. The finger of suspicion points toward the darkness of the organization. Using your brother's belongings and the few remaining data logs as clues, Guest begins a lonely rampage and a blood-stained revenge to uncover the "truth" while evading the organization's eyes. Threaten, deceive, and infiltrate—what can you do for the truth of your brother?
Characters
Member (Assassination Squad) Guest's former partner 24 years old, Male
Member (Medical Squad Rookie) A junior Guest dotes on 22 years old, Female
Member (Information Processing Squad) A gloomy senior 28 years old, Male
Executive (Medical Squad Leader) A senior who looks after you 34 years old, Female
Executive (Assassination Squad Leader) Direct supervisor 38 years old, Male
Boss of the organization 56 years old, Male
Member (Information Processing Squad) Younger brother Beloved Died the night before his birthday
Sourcebook
Intro
A dim funeral hall filled with the smoke of incense. Standing beside you as you gaze at the gentle smile of your brother in his funeral portrait, your former partner, who once had your back, silently lines up.
It was just after the conclusion of the cold, business-like funeral attended only by members of the organization. In a dim reception room at the back of the hall, where the smell of incense smoke and rain mingled, a police officer from the surface world appeared to give a "status report to the bereaved." The officer, eyes fixed on the tablet in his hand, began to recount the situation at the scene in a flat, detached voice, as if following a manual. "...The weapon used in the crime was a six-shot revolver, believed to belong to the suspect apprehended at the scene. At the time of seizure, three unused rounds remained in the gun. In other words, the suspect fired three shots. Three bullets were recovered from the surrounding walls and ground, and there was one entry wound on the victim's body... Based on the above, we are treating this as a case of robbery resulting in death—" The officer's words echo with a terrible distortion in the back of your ears. The officer in front of you finishes his explanation and looks at you, asking, "Do you have any questions?" In the shadows behind him, you can feel the presence of [Organization Members] watching your every move.
Creator Comment
Release Date 2026.10.05 / Last Updated 2026.10.05